CN215416942U - Compound fire detection device combining visual identification and infrared detection - Google Patents
Compound fire detection device combining visual identification and infrared detection Download PDFInfo
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- CN215416942U CN215416942U CN202120579209.3U CN202120579209U CN215416942U CN 215416942 U CN215416942 U CN 215416942U CN 202120579209 U CN202120579209 U CN 202120579209U CN 215416942 U CN215416942 U CN 215416942U
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Abstract
The utility model discloses a composite fire detection device combining visual identification and infrared detection, which comprises a stand column, wherein a camera, a control box and a plurality of infrared fire detectors are arranged on the stand column, the infrared fire detectors are uniformly distributed along the circumferential direction of the stand column, the camera is rotatably arranged at the top end of the stand column through a mounting seat, and the camera and the infrared fire detectors are respectively and electrically connected with the control box. In the utility model, the camera is only used as a monitoring camera in a normal state, when an infrared fire detector in a certain direction on the stand column monitors a fire signal, the control box controls the camera to rotate, so that the shooting angle of the camera is aligned to the monitoring direction of the infrared fire detector, and meanwhile, the image acquired by the camera in the direction is identified and processed to judge whether a fire occurs; through this kind of design, reduced detection device's false alarm rate and power consumption.
Description
Technical Field
The utility model belongs to the technical field of flame detection, and particularly relates to a composite fire detection device combining visual identification and infrared detection.
Background
The fire detector is a device for detecting the scene and finding out the fire in the fire-fighting automatic fire alarm system. Fire detectors are the "sense organs" of the system and function to monitor the environment for the presence or absence of a fire. Once there is fire, the characteristic physical quantity of fire, such as temperature, smoke, gas and radiation intensity, etc. are converted into electric signals, and act immediately to send alarm signals to the fire alarm controller.
The existing fire detection method comprises an infrared fire detection principle and an image type fire detection principle;
infrared fire detection principle: the radiation light generated by combustion is filtered by the infrared filter, only infrared light enters the detector, the infrared light is focused on the infrared photosensitive element through the convex lens, an optical signal is converted into an electric signal, and the amplifying circuit identifies and amplifies a flame combustion signal according to the flame flicker frequency. In order to prevent the false action caused by the accidental fluctuation of other infrared radiation sources on site, the infrared detector is also provided with a time delay circuit which gives a corresponding response time to the detector and is used for eliminating the interference of the accidental change of other infrared sources to the detector. When the time for continuously identifying the signal exceeds the given requirement, the alarm device is triggered to send out a fire alarm signal.
Image-based fire detection principle: the image type fire detector is a fire image recognition system based on video monitoring, monitors the scene by utilizing the image type fire detector, collects, recognizes and analyzes fire signals, and finally realizes the alarm of fire. The image type fire detector is a novel detector, has the functions of smoke detection and flame detection as common detectors, can perform video monitoring on a protection area, and has the dual functions of fire detection and video monitoring. The image type fire detector detects early fire smoke and flame in a video monitoring mode, converts acquired video signals into an image format through a built-in processor, and processes and analyzes the image, namely, researches the heat, color, shape, spectrum and motion characteristics of the fire, mainly smoke and flame to judge whether the fire occurs; on the other hand, the video signal is transmitted to the optical fiber switch through the optical fiber, and finally the signal is transmitted to the intelligent image fire alarm management system platform through the network cable.
The existing infrared fire detector has the following defects: when no fire occurs, the detector can generate false alarm for interference sources such as high-temperature radiation, electromagnetic radiation, human body interference and the like.
The existing image type fire detector has the following defects:
1) when no fire occurs, false alarm can occur on objects with the color and the shape similar to that of flames;
2) when the video image algorithm is processed all the time, the power consumption is large;
3) the shooting angle of camera is fixed, needs a plurality of cameras of installation, can not adjust the shooting angle of camera according to actual conditions.
Disclosure of Invention
The utility model aims to provide a composite fire detection device combining visual identification and infrared detection aiming at the problems in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a compound fire detection device that visual identification and infrared detection combined, includes the stand, install camera, control box and a plurality of infrared fire detector on the stand, it is a plurality of infrared fire detector evenly arranges along stand circumference, the top at the stand is installed through the mount pad rotary type to the camera, a plurality of infrared fire detector are connected with the control box electricity respectively.
In the utility model, the camera is only used as a monitoring camera in a normal state, when an infrared fire detector in a certain direction on the stand column monitors a fire signal, the control box controls the camera to rotate, so that the shooting angle of the camera is aligned to the monitoring direction of the infrared fire detector, and meanwhile, the image acquired by the camera in the direction is identified and processed to judge whether a fire occurs; through the design, on one hand, the false alarm rate of the detection device is reduced through the image visual recognition and infrared detection dual recognition technology; on the other hand, when the infrared fire detector does not monitor the fire signal, a video image algorithm program does not need to be started to identify the video image, and the power consumption of the system is reduced.
Specifically, the inside step motor that is equipped with in top of stand, step motor's output with the mount pad is connected, step motor is connected with the control box electricity. When the infrared fire detector in a certain direction on the stand column monitors a fire signal, the control box sends a control instruction to the stepping motor, the stepping motor drives the camera to rotate by a corresponding angle according to the control instruction, so that the shooting angle of the camera is aligned to the monitoring position of the infrared fire detector, and whether a fire disaster happens or not is further judged through image identification.
Furthermore, a power module, a control module, a storage module and an image recognition module are arranged in the control box, and the power module, the storage module, the image recognition module, the camera, the infrared fire detector and the stepping motor are respectively and electrically connected with the control module;
the power supply module is used for supplying electric energy to the control module, the storage module, the image recognition module, the camera, the infrared fire detector and the stepping motor; the power supply module is connected with the mains supply.
The control module is used for controlling the stepping motor to drive the camera to rotate to the position corresponding to the infrared fire detector according to the fire signal monitored by the infrared fire detector so as to further confirm the fire signal;
the storage module is used for storing video image data shot by the camera;
the image recognition module is used for recognizing and analyzing the image shot by the camera after the infrared fire detector monitors a fire signal, and further judging whether a fire disaster occurs.
Further, the top of camera is equipped with the rain shade, the rain shade passes through the support mounting on the stand, when detection device installs in the open air, can avoid electrical equipment such as camera, control box to drench with rain and intake.
Further, the top surface of the rain shade is provided with a solar cell panel, the solar cell panel is electrically connected with the power module, and the solar cell panel can charge the power module, so that electric energy is saved.
Specifically, the number of the infrared fire detectors is 4, the detection range of each infrared fire detector in the horizontal direction is 90 degrees, no dead angle monitoring can be achieved on the environment around a fire detection point by arranging the 4 infrared fire detectors, and the installation number of the infrared fire detectors can be adjusted according to actual requirements on the site in the specific installation process.
Specifically, a wireless communication module is arranged in the control box and used for the fire detection device to be in communication connection with the monitoring background, so that a real-time monitoring picture of a fire detection point can be conveniently issued to the monitoring background, and the monitoring background can also respond to an alarm prompt according to a fire signal issued by the detection device.
Compared with the prior art, the utility model has the beneficial effects that: (1) the fire detection device combines the advantages of the infrared fire detector and the image type fire detector, eliminates the false alarm condition caused by objects similar to flame colors and shapes through the infrared fire detector, eliminates the false alarm condition caused by interference sources such as high-temperature radiation, electromagnetic radiation, human body interference and the like through the image type fire detector, and reduces the false alarm rate of the detection device; (2) in the utility model, the camera is in a low-power-consumption video monitoring state in a normal state, and only when the infrared fire detector monitors a fire signal, the image processing and analysis are carried out on the video image acquired by the camera, so that the power consumption of the system is reduced; (3) according to the utility model, the infrared fire detectors are arranged on the upright column along the circumferential direction, the camera is rotatably arranged at the top end of the upright column through the stepping motor and the mounting seat, and the full-coverage monitoring of a fire detection point can be realized by only arranging one camera, so that the cost is reduced.
Drawings
FIG. 1 is a schematic view of a fire detection device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the electrical connections of a fire detection device in accordance with an embodiment of the present invention;
in the figure: 1. a column; 2. a camera; 3. a control box; 4. an infrared fire detector; 5. a mounting seat; 6. a rain shade; 7. a support; 8. a solar cell panel.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the embodiment provides a composite fire detection device combining visual identification and infrared detection, which includes a column 1, wherein a camera 2, a control box 3 and 4 infrared fire detectors 4 are mounted on the column 1, the 4 infrared fire detectors 4 are uniformly arranged along the circumferential direction of the column 1, the detection range of each infrared fire detector 4 in the horizontal direction is 90 °, the camera 2 is rotatably mounted at the top end of the column 1 through a mounting seat 5, and the camera 2 and the 4 infrared fire detectors 4 are respectively electrically connected with the control box 3; no dead angle monitoring can be accomplished to the environment around the conflagration detection point through setting up 4 infrared fire detector 4, and in the concrete installation, can be according to the installation quantity of on-the-spot actual demand adjustment infrared fire detector 4.
Specifically, the inside step motor that is equipped with in top of stand 1, step motor's output with mount pad 5 is connected, step motor is connected with control box 3 electricity. When the infrared fire detector 4 in a certain direction on the upright post 1 monitors a fire signal, the control box 3 sends a control instruction to the stepping motor, the stepping motor drives the camera 2 to rotate by a corresponding angle according to the control instruction, so that the shooting angle of the camera 2 is aligned to the monitoring position of the infrared fire detector 4, and whether a fire disaster occurs or not is further judged through image identification.
Further, as shown in fig. 2, a power module, a control module, a storage module and an image recognition module are arranged in the control box 3, and the power module, the storage module, the image recognition module, the camera 2, the infrared fire detector 4 and the stepping motor are respectively and electrically connected with the control module;
the power supply module is used for supplying electric energy to the control module, the storage module, the image recognition module, the camera 2, the infrared fire detector 4 and the stepping motor; the power supply module is connected with the mains supply.
The control module is used for controlling the stepping motor to drive the camera 2 to rotate to the position corresponding to the infrared fire detector 4 according to the fire signal monitored by the infrared fire detector 4 so as to further confirm the fire signal;
the storage module is used for storing video image data shot by the camera 2;
the image recognition module is used for recognizing and analyzing the image shot by the camera 2 after the infrared fire detector 4 monitors a fire signal, and further judging whether a fire occurs (in the embodiment, an AI (artificial intelligence) discrimination method is adopted to train and test parameters such as color, shape, texture and special frequency of flame, and the like, so that a better recognition effect is achieved).
Further, the top of camera 2 is equipped with bamboo hat shape rainshade 6, rainshade 6 passes through support 7 to be installed on stand 1, when detection device installs when open air, can avoid electrical equipment such as camera 2, control box 3 to drench the rain and intake.
Further, 6 top surfaces of rain shade are equipped with solar cell panel 8, solar cell panel 8 is connected with the power module electricity, solar cell panel 8 can charge power module, has saved the electric energy.
Specifically, a wireless communication module (such as an RS484 wireless communication module) is arranged in the control box 3, and is used for the communication connection between the fire detection device and the monitoring background, so as to conveniently issue the real-time monitoring picture of the fire detection point to the monitoring background, and the monitoring background can also respond to the alarm prompt according to the fire signal issued by the detection device.
In this embodiment, the camera 2 is normally used only as the monitoring camera 2, when an infrared fire detector in a certain direction on the column 1 monitors a fire signal, the control module controls the stepping motor to drive the camera 2 to rotate, so that the shooting angle of the camera 2 is aligned to the monitoring position of the infrared fire detector, and meanwhile, the image recognition module recognizes and processes a video image acquired by the camera 2 in the position to further judge whether a fire occurs; if a fire disaster is judged to happen, the monitoring video shot by the camera 2 is sent to the monitoring background through the wireless communication module, and the monitoring background responds to an alarm prompt after manual confirmation. According to the utility model, the image type fire detection technology and the infrared fire detection technology are combined, on one hand, the false alarm rate of the detection device is reduced through the image visual recognition and infrared detection dual recognition technology; on the other hand, when the infrared fire detector does not monitor the fire signal, a video image algorithm program does not need to be started to identify the video image, and the power consumption of the system is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a compound fire detection device that visual identification and infrared detection combined, a serial communication port, which comprises a stand, install camera, control box and a plurality of infrared fire detector on the stand, it is a plurality of infrared fire detector evenly arranges along stand circumference, the top at the stand is installed through the mount pad rotary type to the camera, a plurality of infrared fire detector are connected with the control box electricity respectively.
2. The fire detection device of claim 1, wherein a stepping motor is disposed inside the top end of the column, the output end of the stepping motor is connected to the mounting base, and the stepping motor is electrically connected to the control box.
3. The composite fire detection device combining visual identification and infrared detection according to claim 2, wherein a power module, a control module, a storage module and an image identification module are arranged in the control box, and the power module, the storage module, the image identification module, the camera, the infrared fire detector and the stepping motor are respectively electrically connected with the control module.
4. A combined visual and infrared fire detection device as claimed in claim 3, wherein a rain shade is provided above the camera, and the rain shade is mounted on the pillar via a bracket.
5. A combined visual identification and infrared detection fire detection device as claimed in claim 4, wherein a solar panel is provided on the top surface of the canopy, the solar panel being electrically connected to the power module.
6. A combined fire detection device with visual recognition and infrared detection as claimed in claim 1, wherein there are 4 infrared fire detectors, and each of the infrared fire detectors has a detection range of 90 ° in the horizontal direction.
7. The composite fire detection device combining visual identification and infrared detection as claimed in claim 1, wherein a wireless communication module is provided in the control box for the communication connection of the fire detection device with a monitoring background.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120579209.3U CN215416942U (en) | 2021-03-22 | 2021-03-22 | Compound fire detection device combining visual identification and infrared detection |
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| CN202120579209.3U CN215416942U (en) | 2021-03-22 | 2021-03-22 | Compound fire detection device combining visual identification and infrared detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115171315A (en) * | 2022-07-04 | 2022-10-11 | 中国人民解放军海军勤务学院 | Compound fire detection device that visual identification and infrared detection combine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115171315A (en) * | 2022-07-04 | 2022-10-11 | 中国人民解放军海军勤务学院 | Compound fire detection device that visual identification and infrared detection combine |
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